CVE-2023-41094CWE-940

Touchlink authentication bypass due to packets processed after timeout or out of range in Ember ZNet

Critical · published October 4, 2023

CVSS v3.1
10.0
EPSS
1%
Percentile
52.1
In the wild
Unconfirmed
What it is

🚨 A sneaky timing issue in Ember ZNet lets devices slip in like they own the place! 😱 Think of it as a guest who lingers just a bit too long at a party and sneaks back in when the host isn't looking — this flaw allows devices to connect beyond their welcome time or range. It's like leaving the front door ajar, inviting anyone to waltz in! An attacker could exploit this vulnerability to add unauthorized devices to your network, potentially leading to full control over connected systems. This breach could compromise sensitive data, create an entry point for further attacks, and disrupt operations. The consequences could be absolutely devastating!

Put simply

Think of it as a guest who lingers just a bit too long at a party and sneaks back in when the host isn't looking — this flaw allows devices to connect beyond their welcome time or range. It's like leaving the front door ajar, inviting anyone to waltz in! This vulnerability stems from the processing of TouchLink packets that are sent after the valid timeout or out of range, due to a failure to properly manage resource release after their effective lifecycle. It allows unauthorized pairing of devices, bypassing intended security measures.

What to do

An attacker could exploit this vulnerability to add unauthorized devices to your network, potentially leading to full control over connected systems. This breach could compromise sensitive data, create an entry point for further attacks, and disrupt operations. The consequences could be absolutely devastating! To mitigate this risk, immediately update your Ember ZNet systems to version 7.3 or later, where this issue has been resolved. It's also advisable to review your network access policies and monitor for any unauthorized devices connecting to avoid potential breaches. 🛡️ You've got this! By taking these steps, you’ll keep your network secure and your hero status intact! 💪✨

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00687 · 52.1th percentile
Weakness
CWE-940 · Improper Verification of Source of a Communication Channel
Published
2023-10-04T20:01Z
EPSS history
Timeline
  • 04 OCT 20:01Z
    Touchlink authentication bypass due to packets processed after timeout or out of range in Ember ZNet
    cvelistv5